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陕西某高校一位副教授因高热住进职工医院，经B超、CT、抽血、抽骨髓化验等检查后，难以确诊。医生恐延误病情，于是给予高档抗生素治疗，但病情不好转。第 16天，该院请某市医院会诊，仍依据上述理化数据而诊断为病毒性感冒，给予相应治疗后仍无济于事。病人在这两家医院里诊治达20多天，花钱近万元，连是什么病都没有看明白。后采，医院只好请西安医大第一附属医院刘清珍教授来会诊。刘教授并不像前两个医院那样，先盲目用一些理化检验手段，而是仔细问诊查体，当在病人身上发现了3个极易被忽视的小红点时，病情很快得到确诊：原来是病人在不久前游览西双版纳时被蚊虫叮咬，导致斑疹伤寒。确诊后，病人家属遵医嘱到药店花1.2元钱买了20片四环素，病人口服后痊愈 刘教授能为病人很快确诊的根本原因是
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Decide which of the choices given below would best complete the passage if inserted in the corresponding blanks. Mark the best choice for each blank on your ANSWER SHEET. A scientist who wants to predict the way in which consumers will spend their money must study consumer behavior. He must obtain (31) both on resources of consumers and on the motives that (32) to encourage or discourage money spending. If an (33) were asked which of three groups borrow most—people with rising incomes, (34) incomes, or declining incomes—he would (35) answer: those with declining incomes. Actually, in the past, the answer was: people with rising incomes. People with declining incomes were next and people with stable incomes borrowed the (36) . This shows us that traditional (37) about earning and spending are not always (38) . Another traditional assumption is that if people who have money expect prices to go up, they will (39) to buy. If they expect prices to go down, they will postpone buying. (40) research surveys have shown that this is not always (41) The expectations of price increases may not stimulate buying. One (42) attitude was expressed by the wife of a mechanic at a time of rising prices. Her family had been planning to buy a new car but they postponed this purchase. (43) , the rise in prices that has already taken place may be resented and buyer’s resistance may be evoked. The (44) mentioned above was carried out in America. Investigations (45) at the same time in Great Britain, however, yielded results that were more (46) traditional assumptions about saving and spending patterns. The condition most contributive to spending (47) to be price stability. If prices have been stable and people consider that they are (48) , they are likely to buy. Thus, it appears that the common (49) policy of maintaining stable prices is based on a correct understanding of (50) psychology.
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